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Prehistoric time presentation


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Prehistoric time presentation

  1. 1. Prehistoric Time Ms. Byrd’s 2 nd grade
  2. 2. The Mezosoic “The Age of the Reptiles” <ul><li>Consist of 3 sub-periods </li></ul>
  3. 3. Dinosaurs <ul><li>Dinosaurs are named for certain features of their appearance </li></ul><ul><li>Example their head shape, tooth shape, or other unusual features </li></ul>
  4. 4. <ul><li>Triceratops means three-horned head </li></ul><ul><li>Spinosauras means spiny lizard </li></ul><ul><li>Astrodon means star tooth </li></ul>
  5. 5. Extinction <ul><li>Extinction is the process in which a species dies out. (meaning no longer existing) </li></ul>
  6. 6. Theories of Extinction <ul><li>Mass extinction </li></ul><ul><li>Background extinction </li></ul><ul><li>Still unsure of reason </li></ul>
  7. 7. Video <ul><li><object width=&quot;640&quot; height=&quot;385&quot;><param name=&quot;movie&quot; value=&quot;;></param><param name=&quot;allowFullScreen&quot; value=&quot;true&quot;></param><param name=&quot;allowscriptaccess&quot; value=&quot;always&quot;></param><embed src=&quot;; type=&quot;application/x-shockwave-flash&quot; allowscriptaccess=&quot;always&quot; allowfullscreen=&quot;true&quot; width=&quot;640&quot; height=&quot;385&quot;></embed></object> </li></ul>
  8. 8. Fossils <ul><li>There are four types of fossils: </li></ul><ul><li>1. Mold fossils </li></ul><ul><li>2. Cast fossils </li></ul><ul><li>3. Trace fossils </li></ul><ul><li>4. True form fossils </li></ul>
  9. 9. What do fossils consist of? <ul><li>Fossils are from hard parts of the body </li></ul><ul><ul><ul><li>Most commonly bones </li></ul></ul></ul><ul><ul><ul><li>Also made up from teeth and claws </li></ul></ul></ul><ul><li>There have been a few eggs found that have been fossilized </li></ul>
  10. 10. Oral Quiz <ul><li>Why does the name triceratops mean? </li></ul><ul><li>What does the “Mesozoic” era mean? </li></ul><ul><li>What does extinction mean? </li></ul><ul><li>What body part is most commonly fossilized? </li></ul><ul><li>What is one theory they used to explain extinction? </li></ul>
  11. 11. Bibliography <ul><li>“ This project was created using the fair use guidelines” </li></ul><ul><li>Col, Jeananda. Enchanted Learning. 1996 <> </li></ul>